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Durham University

Department of Earth Sciences

Profile

Publication details for Professor Yaoling Niu

Zou, H., Zindler, A. & Niu, Yaoling (2002). Constraints on melt movement beneath the East Pacific Rise from 230Th-238U disequilibrium. Science 295(5552): 107-110.

Author(s) from Durham

Abstract

We report 230Th-238U disequilibrium data on mid-ocean ridge basalts recovered 5 to 40 kilometers off the ridge axis near 9°30′N of the East Pacific Rise. These data indicate near-symmetrical eruptions of normal mid-ocean ridge basalts (NMORBs) and incompatible element–enriched mid-ocean ridge basalts (EMORBs) as far as 20 kilometers off axis. Our results suggest large-scale subsurface lateral transport of NMORB melt at 19 to 21 centimeters per year and also provide constraints on the petrogenesis of EMORBs of off-axis origin.